1Department of Electronics, Quaid-i-Azam University, Islamabad 45320, Pakistan2Department of Physics, National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan3Department of Physics, University of Agriculture, Faisalabad, Pakistan

Received 12 November 2010; Revised 29 January 2011; Accepted 16 March 2011

Abstract

Electromagnetic
scattering from coated nihility circular
cylinders, illuminated by E-polarized plane
wave,
is investigated using an iterative procedure. Cylinders are infinite in length. The boundary conditions are
applied on the surface of each cylinder in an iterative procedure in order to solve for the field expansion
coefficients. The effect of different types of the coating layers including double positive (DPS) and double
negative (DNG) on the alteration of the forward and backward scattering has been observed. Specially,
the effect of dispersive and dissipative DNG coating layer has been focused. Numerical verifications are
presented to prove the validity of this formulation by comparison with the published literature.